JPS5575704A - Method for removing iron in acid phosphate series extraction solvent - Google Patents
Method for removing iron in acid phosphate series extraction solventInfo
- Publication number
- JPS5575704A JPS5575704A JP15074278A JP15074278A JPS5575704A JP S5575704 A JPS5575704 A JP S5575704A JP 15074278 A JP15074278 A JP 15074278A JP 15074278 A JP15074278 A JP 15074278A JP S5575704 A JPS5575704 A JP S5575704A
- Authority
- JP
- Japan
- Prior art keywords
- acid phosphate
- iron
- extraction solvent
- aqueous solution
- chelating agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To separate and remove iron effectively by a simplified operation in which iron present in an acid phosphate extraction solvent is brought into contact with an aqueous solution of specific chelating agent at a specific pH to transfer the iron to the aqueous solution.
CONSTITUTION: Acid phosphate such as di-2-ethylhexyl phosphate itself, or in solution in benzene etc., is brought into contact with an aqueous solution containing approx. 0.001W1mol/l of an alkylenepolyamineacetate chelating agent such as ethylenediaminetetraacetic acid, at pH 4.5 or more, whereupon iron in the acid phosphate is almost completely transferred to the chelating agent aqueous solution and then separated for removal. Thus, iron can be removed from acid phosphate extraction solvent effectively by a simplified operation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15074278A JPS5575704A (en) | 1978-12-06 | 1978-12-06 | Method for removing iron in acid phosphate series extraction solvent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15074278A JPS5575704A (en) | 1978-12-06 | 1978-12-06 | Method for removing iron in acid phosphate series extraction solvent |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5575704A true JPS5575704A (en) | 1980-06-07 |
Family
ID=15503414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15074278A Pending JPS5575704A (en) | 1978-12-06 | 1978-12-06 | Method for removing iron in acid phosphate series extraction solvent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5575704A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01230785A (en) * | 1988-03-10 | 1989-09-14 | Matsushita Electric Ind Co Ltd | Electroless copper plating bath |
-
1978
- 1978-12-06 JP JP15074278A patent/JPS5575704A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01230785A (en) * | 1988-03-10 | 1989-09-14 | Matsushita Electric Ind Co Ltd | Electroless copper plating bath |
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